# Extrapolator – aanwyser vir MetaTrader 4

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The indicator is based on several methods that can be chosen by the Method input variable:

metode 1: Fourier’s extrapolation; the frequencies are calculated using the Quinn-Fernandes Algorithm

metode 2: Autocorrelation Method

metode 3: Weighted Burg Method

metode 4: Burg Method with Helme-Nikias weighting function

metode 5: Itakura-Saito (geometric) metode

metode 6: Modified covariance method

Methods 2-6 are the methods of linear prediction. The linear prediction is based on finding the future values as the linear functions of the past values. Assume that we have a number of prices x[0]..x[n-1] where the higher index is compliant with the recent price. The prediction of the future price x[N] is calculated as

x[N] = -Sum('n[i]*x[n-i], i=1..p)

where a[i=1..p] – coefficients of the model, porder of the model. The listed methods 2-6 find the coefficients a[] by decreasing the mean-root-square error on the training last n-p bars. Natuurlik, we can reach the zero error of prediction if we directly solve the set of equations mentioned above with n=2*p by the Levinson-Durbin method. Such method of prediction is called Prony Method. Its disadvantage is the instability during the prediction of the future values of the series. That’s way this method has not been included.

The other input parameters are:

LastBarthe number of the last bar in the past data

PastBarsthe number of past bars used for the prediction of the future values

LPOrderthe order of the linear model as a fraction from the number of the past bars (0..1)

FutBarsthe number of future bars in the prediction

HarmNothe maximum number of frequencies for the Method 1 (0 means all frequencies)

FreqTOL – the imprecision of the frequeincies calculation for the Method 1 (if it is >0.001 it can’t converge)

BurgWinthe number of the weighting function for the Method 2 (0=Rectangular 1=Hamming 2=Parabolic)

The indicator draws two lines: the blue line shows the prices of the model on the training bars, the red line shows the predicted future prices.

### MT4 Aanwysers – Laai instruksies af

Extrapolator – aanwyser vir MetaTrader 4 is 'n Meta Trader 4 (Hierdie artikel is 'n weesbladsy.) aanwyser en die essensie van hierdie tegniese aanwyser is om die opgehoopte geskiedenis data te transformeer.

Extrapolator – aanwyser vir MetaTrader 4 maak voorsiening vir 'n geleentheid om verskeie eienaardighede en patrone in die prys dinamika wat nie met die blote oog is op te spoor.

Gebaseer op hierdie inligting, handelaars verdere prysbeweging kan aanvaar en hul strategie dienooreenkomstig aanpas. Klik hier vir MT4 Strategieë

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#### How to install Extrapolator – aanwyser vir Meta Trader 4.mq4?

• Copy Extrapolator – aanwyser vir Meta Trader 4.mq4 om jou Meta Trader Gids / Kundiges / Aanwysers /
• Begin of herbegin jou Metatrader 4 Kliënt
• Kies Grafiek en Tydraamwerk waar jy jou MT4-aanwysers wil toets
• Soek “Pasgemaakte aanwysers” in jou Navigator meestal links in jou Metatrader 4 Kliënt
• Right click on Extrapolator – aanwyser vir Meta Trader 4.mq4
• Heg aan 'n grafiek
• Modifiseer instellings of druk ok
• Indicator Extrapolator – aanwyser vir Meta Trader 4.mq4 is beskikbaar op jou Chart

#### How to remove Extrapolator – aanwyser vir Meta Trader 4.mq4 uit jou Meta Trader Chart?

• Kies die Grafiek waar is die aanwyser wat in jou Metatrader loop 4 Kliënt
• Regskliek in die Grafiek
• “Aanwysers lys”
• Kies die aanwyser en skrap

#### Extrapolator – aanwyser vir MetaTrader 4 (Gratis aflaai)

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